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US 12,695,422 B2Granted
Electronic oscillator with independent controls of variable capacities
OwnerMichel Ayraud, Fernando Jose Ramalho Teixeira, Jr.inventors
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Abstract
The present description concerns an electronic oscillator comprising a resonator coupled in parallel to at least one active circuit, the resonator comprising two electrodes coupled to separate variable capacitive elements forming a charge capacitive element of the electronic oscillator, and a control device configured to independently control the values of the variable capacitive elements.
Claims20
An electronic oscillator comprising:
- a resonator coupled in parallel with at least one active circuit, the resonator comprising two electrodes coupled to distinct variable capacitive elements forming a charge capacitive element of the electronic oscillator, wherein each of the variable capacitive elements comprises a bank of capacitors having different values, and
- a control device configured to independently control values of the variable capacitive elements,
- wherein the control device comprises a digital circuit,
- wherein the control device comprises an adder configured to add a least significant bit of a control signal coded over a plurality of bits to a binary number formed of the bits of the control signal other than the least significant bit of the control signal, and
- wherein the control device is configured to apply an output signal of the adder to at least one control input of a first bank of capacitors and to apply the binary number to at least one control input of a second bank of capacitors.
2 more elements
A control method of an electronic oscillator comprising:
- coupling a resonator in parallel with at least one active circuit, the resonator comprising two electrodes coupled to distinct variable capacitive elements forming a charge capacitive element of the electronic oscillator, and
- independently controlling, by a control device, values of the variable capacitive elements,
- wherein:
- the control device comprises a digital circuit,
- each of the variable capacitive elements comprises a bank of capacitors having different values, and
- the control device comprises an adder configured to add a least significant bit of a control signal coded over a plurality of bits to a binary number comprising the bits of the control signal other than the least significant bit of the control signal, and
- wherein the control method comprises:
- receiving the control signal at an input of the adder, then
- adding, by the adder, the least significant bit of the control signal with the binary number comprising the bits of the control signal other than the least significant bit of the control signal, then
- applying, by the control device, an output signal of the adder to at least one control input of a first bank of capacitors, and applying the binary number to at least one control input of a second bank of capacitors.
7 more elements
Dependencies are inferred from the claim text.